Light Extraction Enhancement of GaN LEDs by Hybrid ZnO Micro-Cylinders and Nanorods Array
作者： Zhengmao Yin , Xiaoyan Liu , Hanchao Yao , Yongzhong Wu , Xiaopeng Hao
关键词: Electroluminescence 、 Materials science 、 Diode 、 Nanorod 、 Nanophotonics 、 Optoelectronics 、 Wide-bandgap semiconductor 、 Light-emitting diode 、 Light scattering 、 Microscopy
摘要: A hybrid patterned ZnO micro-cylinders and nanorods array (MCNR) was fabricated to improve the light extraction efficiency for high brightness GaN-based light-emitting diodes (LEDs). The of LEDs with MCNR is increased by 86.4% compared conventional planar LEDs. have greater than those only or array. optical-electrical characteristics far-field radiation patterns are measured analyzed. local optical field distribution micro-cylinders, nanorods, investigated using confocal scanning electroluminescence microscopy. higher enhancement effect attributed that it combines outputting from side walls scattering
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